Bottle-neck mold-roll apparatus.



S. SCHIFF.

BOTTLE NECK MOLD ROLL APPARATUS.

APPLICATION mzu 1AN.22. 1915.

1,226,700. Patented May 22, 1917.

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SIGIVIUND SCHIF-F, OF NEW YORK, N. Y.

BOTTLE-NECK MOLD-ROLL APPARATUS.

To all whom it may concern:

Be it known that I, SIGMUND Sornrr, a subject of the Emperor of Austria-Hungary, residing in the city, county, and State of New YorlglN. Y., have'invented certain new and useful Improvements in Bottle- Neck Mold-Roll Apparatus, of which the following is a specification.

This invention relates to the general art of manufacturing glass bottles and especially to the art of forming the necks of bottles.

One of the main objects of the invention is to provide an apparatus whereby a design may be molded into the inside of the necks of bottles.

Another object of the invention is to provide an apparatus whereby a design having axially extending ribs may be molded into the inside of the necks of bottles.

Still another object of the invention is toprovide an arrangement whereby a mold for forming the inner wall surface of necks of bottles may be actuated without dragging on the material being molded.

These and other features, capabilities and advantages ofthe invention will appear from the subjoined detailed description of one specific embodiment thereof illustrated in the accompanying drawings in which- Figure 1 shows a revolving plunger partly in section disposed in the adapter.

Fig. is an enlarged view similar to Fig. 1 but omitting the adapter and certain of he upper parts shown in Fig. 1.

l 3 is a transverse section taken on the line 3 3 of Fig. 2.

l ig. l: is a plan view of the outer shaft.

This invention is intended particularly for use with .1 the apparatus shown in my Patent No. 1,130,845, granted March 9th, 1915, and similar to that apparatus can be adapted to any method, of or machine for making bottles, as for instance, the apparatus illustrated. in United States Patent No. 706,708, issued to M. J. Owens, August 2, 19041. I do not wish to limit the use of the present invention exclusively to the apparatus shown in my Patent No. 1,130,845, granted March 9, 1915, but since this invention is particularly adapted for use with such apparatus, for purposes of description, it is found convenient and desirable to omit certain of the parts of such apparatus as they are common to both the present inven tion and that forming the subject matter of my aforesaid patent.

Specification of Letters Patent.

Patented May 22, 1917.

Application filed January 22, 1915. Serial No. 3,698.

i In the embodiment shown, a support such as the adapter 1, of usual construction, is provided with a smooth annular bearing face 2, a cylindrical chamber in which is disposed the revolving plunger hereinafter to be described, and has attached to its lower annular end, the neck mold 3 also having a cylindrical chamber,.to which neck mold is attached the thimble or neck moldbushing 4: which is provided with an inner mold surface to form the outer wall of the neck of a bottle. The neck mold 3, and the neck mold bushing 4 are attached together as aforesaid and together comprise two complemental halves.

The revoluble plunger comprises a driven sleeve or hollow outer shaft 5 embracing a narrow upper portion 6 having a cylindrical chamber 7 that is concentric with such upper portion 6;, an intermediate cylindrical portion 8 which is eccentric to and of greater diameter than the upper narrow portion 6; and a lower enlarged cylindrical portion 9 which is eccentric to both the upper portion 6 and the intermediate portion 8, there being a cylindrical chamber 10 extending through both the intermediate portion 8 and the enlarged portion 9 which is of greater diameter than the cylindrical chamber 7 in the upper portion 6. I

On the lower outer edge of the enlarged portion 9, there is provided an annular rabbet 11-to form a seat for the annular rim 12 of an internal gear 13. At the upper end of the shaft 5, there is provided a collar 14 having two radially extending teeth 15 on its upper annular surface to be engaged by he radiallyextendirig teeth 16 provided at the lower end of the collar 17 which is fixed to the driving shaft 18 receiving power from any suitable source.

The shaft hasits intermediate portion 8 disposed inthe bore of the mushroom 19, such mushroom being disposed to rest on the upper surface of the enlarged portion 9 of the shaft 5 and having an. outwardly extending annular bearing member 20 provided. with a smooth finished bearing surface 21 to engage the bearing surface .2 of the adapter 1. Disposed on the upper surface of the mushroom 19 and concentric with the cylindrical chamber of the adapter 1, there is formed an annular crown 22 having a recess 23 cut from its upper edge at one side thereof. This crown 22 and the outer periphery of the mushroom 19 are concentric with one another, but eccentric to the bore 24 of such mushroom.

On the upper surface of said mushroom inside of said crown 22, there is provided a thrust bearing 25 on which is positioned a disk 26 pinned to the shaft 5 and having a shift arm 27 which is disposed in the recess 23 of the crown 22. Between the disk 26 and the collar 14, there is provided loosely mounted on the shaft 5 a grooved collar 28 for engagement by a suitable pin for holding the plunger in the plunger holder. The plunger holder is moved by the machine at intervals up and down, and this plunger holder carries the bearings for shaft 18 which is revolving the plunger.

For normally maintaining the shaft 5 in a position concentric to the mushroom 19, there is provided a spring 32 which is coiled around the crown 22 and has one end of it secured. to the shift arm 27 disposed in the recess 23 and its other end secured in one of a series of recesses 33 formed in the upper surface of the mushroom 19 outside of said crown 22. By this spring, the shift arm will normally be pressed against one end of the recess 23 in which position, the shaft 5 is concentric with the mushroom 19. When the shift arm 27 is swung to the other end of the recess 23 due to the cooperation of the eccentric portion 8 of the outer shaft 5 with the eccentric bore 24 of the mushroom 19, the upper narrow portion 6 will be swung eccentric to the mushroom 19.

The lower outer edge of the mushroom 19 is provided with an annular 'rabbet 29 in which the upperannular edge of the gear casing is disposed. From the cylindrical outer wall of the mushroom 19 there extend in a radial direction ribs 31, the distance from the outer edge of one rib to the outer edge of another oppositely disposed rib conforming substantially to the inn-er diameter of the adapter 1 so as to rotate therein. The relation between the eccentric 8 and eccentric 9 is such that upon initial swinging of the shift arm 27 ,the eccentric 9 will come to the center of the mushroom 19 whereby the loss due to friction between the gear casing 30 and the gear 13 may be reduced to a minimum.

Around the outer. cylindrical surface of the gear casing 30 near its upper end, there is provided an annular recess 34 to receive the annular offsets 35 formed on the two complemental segments 36 which together form an annular member surroundingthe upper end of the gear casing 30 and are provided with screw openings to register with corresponding screw openings in the lower ends of the ribs 31 to receive screws 37 whereby the gear casing is revolubly connected to the mushroom 19.

Disposed inside of said outer shaft 5 is provided an inner shaft 38 having a narrow upper portion 39 provided with a bearing 40 located and rotating in the chamber 7, a lower intermediate portion 41 of larger diameter than said portion 39 and having a bearing 42 located and rotated in said chamber 10, and a gear 43 secured below said bearing and meshing with the internal gear 13. Below the gear 43, there is provided an extension 44 having a collar 45 below which there is provided an externally left hand threaded portion 46 of less diameter than said collar and to which the mold roll 47 is screwed. This left hand screw-threaded connection is provided, since the plunger looking down from the top is rotated in a clockwise direction shaft 38 will rotate in anti-clockwise direction, so that the mold roll will not be turned off the portion 46 when the plunger is rotated. Between the upper end of the mold roll 47 and the gear casing 30 there is provided a bushing 48, the lower end of which rests on the upper end of the mold roll'47 and the upper end of which rests in an annular recess 49 formed in the edge of the gear casing 30 surrounding the opening through which the inner shaft passes. To look this bushing against rotation with the mold roll, there is provided anotch 50 in its upper edge into which engages a lug 51 formed in the gear casing and projecting into the recess 49.

From the foregoing it will be seen that. when the segments 36 are removed, the gear casing can also be removed and therewith the inner shaft and the inner gear.

To look the internal gear 13 against rotation, there is provided a radially extending groove 52 in the bottom of the casing 30 to receive a lug 53 formed on one side of the lower end of the gear 13.

'For the purpose of steadying the gear casing 30 against rotation after the plunger has been inserted for operation, there is provided a complemental gear segment 54 for each co-mplemental section of the neck mold 3 which gear segments 54 when the-neck mold is closed will together form a continuous annular member having radially extending teeth 55 on its upper surface. Into engagement with these teeth, any suitable means may be provided on the gear casing, in the present instance, a spring tooth 56 being so provided at one end of a spring 57 coiled around the casing 30 situated above the rim 58 at the lower end of the cylindrical wall of the casing 30. The other end of the spring 57 is bent up and disposed in the interruption 59 formed in the guiding rim 60 which extends parallel to the rim 58 for a short distance around said casin 30 between which rims the spring 57 is disposed, being bent upward after leaving the guiding rim 60 and then downward again so that its tooth 56 will have a. downward spring ten sion on the rim 58. By this spring tooth arrangcment, it will be seen that the downward movement of the plunger will not be delayed by the failure of the tooth 56 properly to come into engagement between two succeeding teeth 55 since the tooth 56 will be pressed upward, but upon rotation of the plunger due to its resiliency,the spring tooth 56 will snap into place as it is moved between two succeeding teeth 55.

The mold roll 47 is provided with circular depressions 61 and axially extending clepressions 62 as shown in Figs. 1 and 52.

In this apparatus, as in the apparatus of my Patent No. 1,130,845, when the plunger is lowered, the mushroom 19 will be forced down by a lever plus spring tension (not shown) into a position where the an nular bearing member 20 will contact with the bearing surface 2 of the adapter 1. Thereuponby means of the evacuating operation as disclosed in my aforesaid patent, glass will be sucked up into a blank mold (not shown) and into the neckmold bushing el, and only after the neck mold bushing is filled with glass, the shaft 18 will start to drive shaft 5. The mushroom body 20 is forced down by spring action, not shown in the drawing, to surface 2 of adapter 1 and held there motionless by friction. As this friction is greater than the power necessary to tighten spring 3:2 upon the first part of the rotation, the shift arm 27 will swing over from its normal position against one end of the recess 23 to engage the other end of the recess 23 and simultaneously will swing the outer shaft 5 and the thereto connected mold roll 47 into eccentric position. In the further rotation of the shaft 5, the arm 27 engaging the mushroom 19, such mushroom 19 will also rotate and thereby operate to swing the shaft 38 around in a crank-like movement in which motion the mold. roll 47, which in the meantime has formed a hole in a blank of glass, will swing around the inner wall of the timely formed hole. By means of my aforesaid Patent 1,130,845, the mold roll was likewise actuated throguh such a crank-like motion. In the present invention, in addition to this crank-like motion, the mold roll, simultaneously with the crank-like movement, will rotate, and this rotation will roll such mold roll around the hole with substantially no slippage, similar to the action of a wheel on a moving vehicle. By thismeans, the axially extending ribs can be accurately and clearly formed on the inside of a bottle neck, as well as any other kind of a design that may be desirable. When the melding of the bottle neck has been finished, the forward rotation of the driving shaft has ceased, and before the plunger is raised,the spring 32 will return the shift arm 27 to normal position and while so returning will turn the outer shaft 5 which in turn will swing the inner shaft and with it the mold roll -17 back to central position in which position, the mold roll can easily be withdrawn from the bottle neck. Spring 32 is able toreturn shift arm. :27 to normal position because the driving shaft after completing its forward rotation is reversed by sprmg power.

Dueto the eccentricity of the gear 13 with respect to the shaft 5, the gear 13 although anchored by the lug 53 moving in the slot 552, will not be fixed but swung around the pointof connection of said lug 53 in its slot 52.

To form ribs having one-sixteenth of an inch thickness in a bottle neck of threefourths of an inch internal diameter measure ing from the outer edges of the ribs and seven-eighths of an inch diameter measuring from the inner edges of the ribs, when using a mold roll of twenty three thirty seconds of an inch outside diameter measuring from the outer edges of its raised portions, it has been found that an internal gear of eleven teeth meshing with an inner gear of nine teeth will properly roll such mold around the inner wall of a bottle neck without slippage. The difference in circumferences of the 1 bottle neck and roller (bottle circumference seven-eighths of an inch diameter and roller twenty-three thirty-seconds of an inch diameter) is equal to the difference of the pitch circumferences of the gears. Of course with difierent thicknesses of ribs and difierent diameters of mold rolls and bottle necks, other relations of gear teeth might be required to avoid slippage. The number of axially extending ribs on the mold roll will correspond to the number of teeth on the inner gear. 'I make the ecceir trio displacement of the mold roll equal to the differences of the pitch radii of the internal gear 13 and gear 43. Then there can be chosen mold roll diameter which will roll in the bottle neck absolutely without slippage, as eccentric 9 of shaft 5 is made in such a way that when shift arm 27 moves from one end of the recess 23 to the other end thereof, the internal gear 18 which was before out of center of the mushroom body will move exactly into center of the mushroom body and will be held. stationary by pin 58 during the revolving of the plunger, as gear casing 30 is also held stationary. However, if the ribs were nade of different depth or the mold roll of different diameter, a certain slippage might occur but such slippage would be evenly distributed between the several ribs of such mold roll. This is due to the fact that the mold roll receives a positive rolling movement.

In thepresent instance, the mold roll is provided with nine axially extending grooves and the eccentric displacement is such that there Wlll be formed eleven ribs in a bottle neckso that the mold roll in order to travel completely around the inside of the bottle neck would have to roll off its entire surface against such bottle neck and in addition thereto twoninths of its surface which latter is the surface occupied by two additional grooves. From the foregoing it will be seen, that the periphery of the mold roll should I bear a certain definite relation to the periphery of the neck bottle so that the mold roll when making a succeeding turnaround the bottle neck will haveits grooves accurately registering with the ribs formed in the bottle neck by its preceding turn although in the succeeding turn, the same grooves of the mold roll will not register with the same ribs in the bottle neck which said latter grooves originally formed. In practice it has been found that when the mold roll is rotated about fifteen times, the glass would be sufiiciently chilled to main tain its own shape during the process of blowing the bottle where the compressed air would have a tendency to deform it.

It is obvious that various changes and modifications may be made to the details of construction without departing from the general spirit of the invention.

I claim:

1. In a neck roll apparatus for conforming bottle necks, the combination with an adapter, a plunger disposed in said adapter, a neck mold bushing disposed at the lower end of said adapter, said plunger having an outer shaft, means for moving said outer shaft into an eccentric position relative to said adapter, an inner shaft disposed in said outer shaft, an internal gear substantially fixed relative to said adapter, an inner gear on said inner shaft in mesh withsaid internal gear whereby said inner shaft receives a positive rolling movement when said outer shaft is rotated in its eccentric position, and a mold roll fixed on the lower end of said inner shaft which is positioned in the neck of a bottle to roll around the inside of said neck to mold a design therein.

2. In a neck roll apparatus for conforming bottle necks in combination with a support, a rotatable plunger disposed in said support, said plunger having an outer shaft, means for moving said outer shaft into an eccentric position relative to said support, an inner shaft disposed in said outer shaft, a mold roll on the lower end of said inner shaft which is positioned in the neck of a bottle being formed, and means for positively rotating said mold roll to roll around the inside of said neck to mold a design therein when said outer shaft is rotated in its eccentric position.

3. In a neck mold roll apparatus for conforming bottle necks, the combination with a support, a rotatable plunger disposed in said support, a mold roll secured to said plunger,

means for moving said roll into position eccentric relative to said support, and means for positively rotating said mold roll to roll around the inside of a bottle neck to mold a design therein when said plunger is rotated.

4. In a neck mold roll apparatus for conforming bottle necks, the combination with a support, a plunger disposed to rotate in said support, said plunger comprising a mushroom having an eccentric opening, a shaft having an eccentric portion disposed in said eccentric opening so that the shaft may be moved into a position concentric with said mushroom, a mold roll at the lower end of said shaft, means for rotating said shaft into a position eccentric of said mushroom, and means for positively rotating said mold roll when said shaft in its eccentric position is rotated with said plunger.

5. In a neck mold roll apparatus for conforming bottle necks, the combination with a support, a plunger disposed to rotate in said support, said plunger comprising a mushroom having an eccentric opening, an outer shaft having an intermediate eccentric portion disposed in said opening so that said outer shaft may be moved into position concentric with said mushroom, an inner shaft disposed in said outer shaft, a mold roll at the lower end of said inner shaft, means for swinging said outer shaft into position eccentric of said mushroom, an enlarged portion at the lower end of said outer shaft eccentric both to said mushroom and to said intermediateeccentric portion, an internal gear loosely mounted on said enlarged portion so that said outer shaft can rotate inside of said internal gear, a gear easing locked to said support, there being a radially extending groove in said gear casing, a lug on said internal gear slidably mounted in said groove to permit swinging but prevent rotation of said internal gear, an inner shaft disposed in said outer shaft, a mold roll on the lower end of said inner shaft, an inner gear on said inner shaft in mesh with said internal gear so that said mold roll will be positively rotated in the opposite direction to the rotation of said outer shaft.

6. In a neck mold roll apparatus for conforming bottle necks, the combination with a support, a plunger disposed to rotate in said support, said plunger comprising a mushroom having an eccentric opening, an outer shaft having an intermediate eccentric portion disposed in said eccentric opening so that said outer shaft may be moved into position. concentric with said mushroom, an inner shaft disposed in said outershaft, a mold roll at the lower end of said inner shaft, means ,for rotating said outer shaft into position eccentric of said mushroom, an enlarged portion at the lower end of said outer shaft eccentric both to said mushroom and to said intermediate gear so that said mold roll will be positively rotated in the opposite direction to the rotation of said outer shaft.

7. In a neck mold roll apparatus for conforming bottle necks, the combination with an adapter, a plunger disposed to rotate in '1 said adapter, a neck mold on the lower end of said adapter, said plunger comprising a mushroom having an eccentric opening,

a an outer shaft having an intermediate eccentric portion disposed in said eccentric opening, so that said outer shaft may be moved into a position concentric with said mushroom, an inner shaft disposed in said outer shaft, a mold roll at the lower end of said inner shaft, means for rotating said outer shaft into position eccentric ofsaid mushroom, an enlarged portion at the lower end of said outer shaft eccentric both to said mushroom and to said intermediate eccentric portion, an internal gear loosely mounted on said enlarged portion so that said outer shaft can rotate inside of said internal gear, a gear casing loosely mounted at the lower end of said mushroom, there being a radially extending groove in said gear casing, a lug on said internal gear slidably mounted in said groove to permit swinging but prevent rotation of said internal gear relative to said gear casing, an inner gear on said inner shaft in mesh with said internal gear, andmeans for locking said gear casing to said neck mold so that said mold roll will be positively rotated in an opposite direction to the rotation of said outer shaft.

8. In a neck mold roll apparatus for conforming bottle necks, the combination with an adapter, a plunger disposed to rotate in said adapter, a neck mold on the lower end of said adapter, said plunger comprising a mushroom having an eccentric opening, an outer shaft having an intermediate eccentric portion disposed in said eccentric opening, so that said outer shaft may be moved into a position concentric with said mushroom, an inner shaft disposed in said outer shaft, a mold roll at the lower end of said inner shaft, means for rotating said outer shaftinto position eccentric of said mushroom an enlarged portion at the lower end of sald outer shaft eccentric both to said mushroom and to said intermediate ec-- centric portion, an internal gear loosely mounted on said enlarged portion so that said outer shaft can rotate inside of said internal gear, a gear casing loosely mount ed at the lower end of said mushroom, there belng a radially extendlng groove 1n sald gear caslng, a lug on said internal gear slidab ly mounted in said groove to permit swinging but prevent rotation of said internal gear relative to said gear casing, an inner gear on said inner shaft in mesh with saidinternal gear, means for locking said gear casing to said neck mold so that said mold roll will be positively rotated in an opposite direction to the rotation of said outer shaft, said locking means comprising a gear on said neck mold, and an engaging member on said gear casing to engage said gear.

9. In a neck mold roll apparatus for conforming bottle necks, the combination with a support, a plunger disposed to rotate in said support, said plunger comprising a mushroom, an outer shaft in said mushroom, means for disposing said outer shaft eccentric to said mushroom, an inner shaft disposed in said outer shaft, a mold roll at the lower end of said inner shaft, an internal gear loosely mounted onsaid inner shaft above said mold roll, a gear casing loosely mounted at the lower end of said mushroom, there being a radially extending groove in said gear casing, internal gear slidably mounted in said a lug on said i groove to permit swinging but prevent rotation of said internal gear relative to said gear casing, an inner gear on said inner shaft in mesh with said internal gear, and means for locking said gear casing to said neck mold so that said mold roll will be positively rotated in an opposite direction to the rotation of said outer shaft.

10. In a neck mold roll apparatus for conforming bottle necks, the combination with a support, a neck mold roll at the lower end ofsaid support, a plunger disposed to rotate in said support, said plunger comprising an outer shaft, means for disposing said outer shaft eccentric to said support, an inner shaft disposed in said outer shaft, a mold roll at the lower end of said inner shaft, an internal gear loosely mounted on said outer shaft above said mold roll, a gear casing loosely mounted at the lower end of said plunger, there being a radially extending groove in said gear casing, a lug on said internal gea'r slidably moimted in said groove to permit swinging but prevent rotation of said internal gear relative to saidgear casing, an inner gear on said inner shaft in mesh with said internal gear, means for looking said gear casing to said neck mold so that said mold roll will be positively rotated in an opposite direction to the rotation of said outer shaft, said locking means comprising a gear on said neck mold, and an engaging member on said gear casing to engage said teeth.

a 11. In a neck mold roll apparatus for conforming bottle necks, the combination with a support, a neck mold at the lower end' of said support, a plunger disposed to rotate in said support, said plunger comprising an outer shaft, means for disposing said outer shaft eccentric to said support, an inner shaft disposed in said outer shaft, a mold roll at the lower end of said inner shaft, an internal gear loosely mounted on said outer shaft above said mold roll, a gear casing loosely mounted at the lower end of said plunger, there being a radially extending groove in said gear casing, a lug on said internal gear slidably mounted in said groove to permit swinging but prevent rotation of 'said internal gear relative to said gear casing', an inner gear on said inner shaft in mesh with said internal gear, means for locking said gear casing to said neck mold so that said mold roll will be positively rotated in an opposite direction to the rotation of said outer shaft, said locking means comprising a gear on said neck mold, having radially extending teeth, and a spring tooth on said gear casing to engage said radially extending teeth.

12. In a neck mold roll apparatus for conforming bottle necks, the combination with a support, a neck mold at the lower end of said support, a plunger disposed to rotate in said support, said plunger comprising an outer shaft, means for disposing said outer shaft eccentric to said support, an inner shaft disposed in said outer shaft, a mold roll at the lower end of said inner shaft, an internal gear loosely mounted on said outer shaft above said mold roll, a gear casing loosely mounted at the lower end of said plunger, there being a radially extending groove in said gear casing, a lug on said internal gear slidably mounted in said groove to permit swinging but prevent rotation of said internal gear relative to said gear casing, an inner gear on said inner shaft in mesh with said internal gear, means for locking said gear casing to said neck mold so that said mold roll will be positively rotated in an opposite direction to the rotation of said outer shaft, said locking means comprising a gear on said neck mold having radially extending teeth, and a spring coiled aroundsaid gear casing having one end of it attached to said gear casing and the other end formed into a tooth to engage said radially extending teeth.

13. Ina neck mold roll apparatus for con- Gopiea of this patent inay be obtained for forming bottle necks, the combination with a support, a neck mold at the lower end of said support, a plunger disposed to rotate in said support, said plunger comprising an outer shaft, means for disposing said outer shaft eccentric to said support, an inner shaft disposed in said outer shaft, a mold roll at the lower end of said inner shaft, an internal gear loosely mounted on said outer shaft, an inner gear in meshwith said internal gear, and means for anchoring said internal gear to said support so that said mold roll will be positively rotated in an opposite direction to the rotation of said outer shaft, said anchoring means comprising a casing to which said internal gear is slidably and pivotally connected, a gear on said neck mold having radially extending teeth, and a spring tooth on said casing to engage said radially extending teeth.

14. In a neck mold roll apparatus for con forming bottle necks, the combination with a support, a plunger disposed to rotate in said support, said plunger comprising an outer shaft, means for disposing said outer shaft eccentric to said support, an inner shaft disposed in said outer. shaft, a mold roll at the lower end of said inner shaft, an internal gear loosely mounted on said outer shaft, an inner gear in mesh with said internal gear, and means for anchoring said internal gear to said support so that said mold roll will be positively rotated in an opposite direction to the rotation of said outer shaft, said internal and inner gears having eleven and nine teeth respectively.

15. In a neck mold roll apparatus for conforming bottle necks, the combination with a support, a plunger disposed to rotate in said support, said plunger comprising an outer shaft, means for disposing said outer shaft eccentric to said support, an inner shaft disposed in said outer shaft, a mold roll at the lower end of said inner shaft, an internal gear loosely mounted on said outer shaft, an inner gear in mesh with said internal gear, and means for anchoring said internal gear to said support so that said mold roll will be positively rotated in an opposite direction to the rotation of said outer shaft.

SIGMUND SCHIFF.

five cents each, by addressing the Commissioner of Patents, Washington, D. G." 

